[Influence of preemptive analgesia with etoricoxib on three types of pain after extraction of impacted teeth].

To evaluate the effect of preventive use of etocoxib-induced preemptive analgesia on three types of pain (wound pain, swallowing pain, mouth opening pain) after extraction of impacted teeth. In this study, 60 patients (60 teeth) with impacted mandibular third molars in Department of Jinyintan Outpatient, School of Stomatology, Wuhan University from May to October 2020 were enrolled. The patients were numbered by SPSS 21.0 and randomly divided into two groups. The odd number was included in the etocoxib group, and the even number was included in the control group, with 30 cases in each group. Patients in the two groups were given etocoxib 60 mg or placebo vitamin C 100 mg 30 min before operation. Pain at 2, 4, 6, 8, 10, 12, and 24 hours after tooth extraction was recorded with numeric rating scale (NRS) score. The total dose of ibuprofen rescue intake was recorded. Kaplan-Meier curves and Log-Rank analyses were used to evaluate the proportion of patients without rescue analgesic. The NRS scores of wound pain, swallowing pain and mouth opening pain in the etoricoxib group were lower than those in the control group within 24 hours after tooth extraction (<0.05). The total dose of emergency analgesics in the etoricoxib group [(0.7±0.7) dose] was lower than that in the control group [(1.4±0.9) dose] (<0.01). The mean time between first application of analgesics was 11.5 hours in etoricoxib group and 3.5 hours in the placebo group, respectively (<0.05). This study revealed that etoricoxib has a substantial preemptive analgesic effect, resulting in the reduced use of analgesics after third molar removal.